Method for coating objects

Abstract

Abstract The invention relates to a method for coating objects by means of a coating powder which emerges from the distribution member of a coating plant and is moved by electrostatic forces towards the object to be coated. The coating powder adheres to the object and is converted into a cohesive layer of material by the action of heat and by fusion. The coating powder used is produced from powder raw materials and provided with powder additives suited to the particular application. The method followed is that a crude coating powder, substantially comprising only the powder raw materials and produced by mixing, extruding and pulverisation, is prepared, the additives being added thereto only after its preparation, the additive in question being sprayed in liquid form onto the particles of the crude coating powder, so that the latter are given a coating of additive.

Inventors

• 👤 Kurt Weigel
• 👤 Gerhard Schaal

Bibliographic Details